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#!/usr/bin/env python

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# -*- coding: utf-8 -*-

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#This file is part of PLCOpenEditor, a library implementing an IEC 61131-3 editor

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#based on the plcopen standard. 

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#

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#Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD

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#

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#See COPYING file for copyrights details.

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#

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#This library is free software; you can redistribute it and/or

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#modify it under the terms of the GNU General Public

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#License as published by the Free Software Foundation; either

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#version 2.1 of the License, or (at your option) any later version.

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#

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#This library is distributed in the hope that it will be useful,

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#but WITHOUT ANY WARRANTY; without even the implied warranty of

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#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

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#General Public License for more details.

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#

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#You should have received a copy of the GNU General Public

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#License along with this library; if not, write to the Free Software

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#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

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import wx

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import wx.grid

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from graphics import *

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#-------------------------------------------------------------------------------

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#                          Create New Block Dialog

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#-------------------------------------------------------------------------------

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[ID_BLOCKPROPERTIESDIALOG, ID_BLOCKPROPERTIESDIALOGNAME, 

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 ID_BLOCKPROPERTIESDIALOGTYPETREE, ID_BLOCKPROPERTIESDIALOGTYPEDESC, 

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 ID_BLOCKPROPERTIESDIALOGINPUTS, ID_BLOCKPROPERTIESDIALOGPREVIEW, 

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 ID_BLOCKPROPERTIESDIALOGSTATICTEXT1, ID_BLOCKPROPERTIESDIALOGSTATICTEXT2, 

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 ID_BLOCKPROPERTIESDIALOGSTATICTEXT3, ID_BLOCKPROPERTIESDIALOGSTATICTEXT4, 

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] = [wx.NewId() for _init_ctrls in range(10)]

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[CATEGORY, BLOCK] = range(2)

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class BlockPropertiesDialog(wx.Dialog):

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    def _init_coll_flexGridSizer1_Items(self, parent):

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        parent.AddSizer(self.MainSizer, 0, border=20, flag=wx.GROW|wx.TOP|wx.LEFT|wx.RIGHT)

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        parent.AddSizer(self.ButtonSizer, 0, border=20, flag=wx.ALIGN_RIGHT|wx.BOTTOM|wx.LEFT|wx.RIGHT)

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    def _init_coll_flexGridSizer1_Growables(self, parent):

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        parent.AddGrowableCol(0)

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        parent.AddGrowableRow(0)

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    def _init_coll_MainSizer_Items(self, parent):

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        parent.AddSizer(self.LeftBoxSizer, 1, border=5, flag=wx.GROW|wx.RIGHT)

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        parent.AddSizer(self.RightGridSizer, 1, border=5, flag=wx.GROW|wx.LEFT)

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    def _init_coll_LeftBoxSizer_Items(self, parent):

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        parent.AddWindow(self.TypeTree, 3, border=5, flag=wx.GROW|wx.BOTTOM)

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        parent.AddWindow(self.TypeDesc, 1, border=0, flag=wx.GROW)

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    def _init_coll_RightGridSizer_Items(self, parent):

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        parent.AddSizer(self.RightUpGridSizer, 0, border=0, flag=wx.GROW)

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        parent.AddWindow(self.staticText4, 0, border=0, flag=wx.GROW)

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        parent.AddWindow(self.Preview, 0, border=0, flag=wx.GROW)

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    def _init_coll_RightGridSizer_Growables(self, parent):

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        parent.AddGrowableCol(0)

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        parent.AddGrowableRow(2)

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    def _init_coll_RightUpGridSizer_Items(self, parent):

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        parent.AddWindow(self.staticText2, 0, border=0, flag=wx.GROW|wx.ALIGN_BOTTOM)

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        parent.AddWindow(self.staticText3, 0, border=0, flag=wx.GROW|wx.ALIGN_BOTTOM)

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        parent.AddWindow(self.BlockName, 0, border=0, flag=wx.GROW)

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        parent.AddWindow(self.Inputs, 0, border=0, flag=wx.GROW)

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    def _init_sizers(self):

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        self.flexGridSizer1 = wx.FlexGridSizer(cols=1, hgap=0, rows=2, vgap=10)

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        self.MainSizer = wx.BoxSizer(wx.HORIZONTAL)

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        self.LeftBoxSizer = wx.StaticBoxSizer(self.staticbox1, wx.VERTICAL)

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        self.RightGridSizer = wx.FlexGridSizer(cols=1, hgap=0, rows=3, vgap=5)

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        self.RightUpGridSizer = wx.GridSizer(cols=2, hgap=5, rows=2, vgap=5)

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        self._init_coll_flexGridSizer1_Items(self.flexGridSizer1)

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        self._init_coll_flexGridSizer1_Growables(self.flexGridSizer1)

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        self._init_coll_MainSizer_Items(self.MainSizer)

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        self._init_coll_LeftBoxSizer_Items(self.LeftBoxSizer)

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        self._init_coll_RightGridSizer_Items(self.RightGridSizer)

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        self._init_coll_RightGridSizer_Growables(self.RightGridSizer)

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        self._init_coll_RightUpGridSizer_Items(self.RightUpGridSizer)

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        self.SetSizer(self.flexGridSizer1)

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    def _init_ctrls(self, prnt):

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        wx.Dialog.__init__(self, id=ID_BLOCKPROPERTIESDIALOG,

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              name='BlockPropertiesDialog', parent=prnt, pos=wx.Point(376, 223),

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              size=wx.Size(600, 360), style=wx.DEFAULT_DIALOG_STYLE|wx.RESIZE_BORDER,

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              title='Block Properties')

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        self.SetClientSize(wx.Size(600, 360))

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        self.staticbox1 = wx.StaticBox(id=ID_BLOCKPROPERTIESDIALOGSTATICTEXT1,

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              label='Type:', name='staticBox1', parent=self,

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              pos=wx.Point(0, 0), size=wx.Size(0, 0), style=0)

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        self.staticText2 = wx.StaticText(id=ID_BLOCKPROPERTIESDIALOGSTATICTEXT2,

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              label='Name:', name='staticText2', parent=self,

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              pos=wx.Point(0, 0), size=wx.Size(0, 17), style=0)

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        self.staticText3 = wx.StaticText(id=ID_BLOCKPROPERTIESDIALOGSTATICTEXT2,

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              label='Inputs:', name='staticText4', parent=self,

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              pos=wx.Point(0, 0), size=wx.Size(0, 17), style=0)

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        self.staticText4 = wx.StaticText(id=ID_BLOCKPROPERTIESDIALOGSTATICTEXT4,

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              label='Preview:', name='staticText4', parent=self,

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              pos=wx.Point(0, 0), size=wx.Size(0, 17), style=0)

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        if wx.Platform == '__WXMSW__':

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            treestyle = wx.TR_HAS_BUTTONS|wx.TR_SINGLE|wx.SUNKEN_BORDER

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        else:

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            treestyle = wx.TR_HAS_BUTTONS|wx.TR_HIDE_ROOT|wx.TR_SINGLE|wx.SUNKEN_BORDER

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        self.TypeTree = wx.TreeCtrl(id=ID_BLOCKPROPERTIESDIALOGTYPETREE,

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              name='TypeTree', parent=self, pos=wx.Point(0, 0),

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              size=wx.Size(0, 0), style=treestyle)

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        self.Bind(wx.EVT_TREE_SEL_CHANGED, self.OnTypeTreeItemSelected,

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              id=ID_BLOCKPROPERTIESDIALOGTYPETREE)

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        self.TypeDesc = wx.TextCtrl(id=ID_BLOCKPROPERTIESDIALOGTYPEDESC,

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              name='TypeDesc', parent=self, pos=wx.Point(0, 0),

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              size=wx.Size(0, 0), style=wx.TE_READONLY|wx.TE_MULTILINE)

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        self.BlockName = wx.TextCtrl(id=ID_BLOCKPROPERTIESDIALOGNAME, value='',

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              name='BlockName', parent=self, pos=wx.Point(0, 0),

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              size=wx.Size(0, 24), style=0)

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        self.Bind(wx.EVT_TEXT, self.OnNameChanged, id=ID_BLOCKPROPERTIESDIALOGNAME)

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        self.Inputs = wx.SpinCtrl(id=ID_BLOCKPROPERTIESDIALOGINPUTS,

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              name='Inputs', parent=self, pos=wx.Point(0, 0),

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              size=wx.Size(0, 24), style=wx.SP_ARROW_KEYS, min=2, max=20)

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        self.Bind(wx.EVT_SPINCTRL, self.OnInputsChanged, id=ID_BLOCKPROPERTIESDIALOGINPUTS)

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        self.Preview = wx.Panel(id=ID_BLOCKPROPERTIESDIALOGPREVIEW,

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              name='Preview', parent=self, pos=wx.Point(0, 0),

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              size=wx.Size(0, 0), style=wx.TAB_TRAVERSAL|wx.SIMPLE_BORDER)

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        self.Preview.SetBackgroundColour(wx.Colour(255,255,255))

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        setattr(self.Preview, "GetDrawingMode", lambda:FREEDRAWING_MODE)

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        self.ButtonSizer = self.CreateButtonSizer(wx.OK|wx.CANCEL|wx.CENTRE)

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        self._init_sizers()

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    def __init__(self, parent):

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        self._init_ctrls(parent)

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        self.BlockName.SetValue("")

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        self.BlockName.Enable(False)

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        self.Inputs.Enable(False)

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        self.Block = None

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        self.MinBlockSize = None

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        self.PouNames = []

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        self.PouElementNames = []

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    def FindTreeItem(self, root, name, inputs = None):

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        if root.IsOk():

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            pydata = self.TypeTree.GetPyData(root)

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            if inputs and "inputs" in pydata:

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                same_inputs = pydata["inputs"] == inputs

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            else:

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                same_inputs = True

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            if self.TypeTree.GetItemText(root) == name and same_inputs:

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                return root

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            else:

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                while item.IsOk():

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                    result = self.FindTreeItem(item, name, inputs)

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                    if result:

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                        return result

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                    item, root_cookie = self.TypeTree.GetNextChild(root, root_cookie)

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        return None

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    def OnOK(self, event):

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        error = []

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        selected = self.TypeTree.GetSelection()

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        block_name = self.BlockName.GetValue()

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        name_enabled = self.BlockName.IsEnabled()

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        if not selected.IsOk() or self.TypeTree.GetItemParent(selected) == self.TypeTree.GetRootItem() or selected == self.TypeTree.GetRootItem():

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            message = wx.MessageDialog(self, "Form isn't complete. Valid block type must be selected!", "Error", wx.OK|wx.ICON_ERROR)

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            message.ShowModal()

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            message.Destroy()

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        elif name_enabled and block_name == "":

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            message = wx.MessageDialog(self, "Form isn't complete. Name must be filled!", "Error", wx.OK|wx.ICON_ERROR)

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            message.ShowModal()

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            message.Destroy()

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        elif name_enabled and not TestIdentifier(block_name):

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            message = wx.MessageDialog(self, "\"%s\" is not a valid identifier!"%block_name, "Error", wx.OK|wx.ICON_ERROR)

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            message.ShowModal()

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            message.Destroy()

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        elif name_enabled and block_name.upper() in IEC_KEYWORDS:

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            message = wx.MessageDialog(self, "\"%s\" is a keyword. It can't be used!"%block_name, "Error", wx.OK|wx.ICON_ERROR)

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            message.ShowModal()

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            message.Destroy()

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        elif name_enabled and block_name.upper() in self.PouNames:

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            message = wx.MessageDialog(self, "\"%s\" pou already exists!"%block_name, "Error", wx.OK|wx.ICON_ERROR)

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            message.ShowModal()

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            message.Destroy()

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        elif name_enabled and block_name.upper() in self.PouElementNames:

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            message = wx.MessageDialog(self, "\"%s\" element for this pou already exists!"%block_name, "Error", wx.OK|wx.ICON_ERROR)

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            message.ShowModal()

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            message.Destroy()

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        else:

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            self.EndModal(wx.ID_OK)

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    def SetBlockList(self, blocktypes):

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        if wx.Platform == '__WXMSW__':

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            root = self.TypeTree.AddRoot("Block Types")

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        else:

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            root = self.TypeTree.AddRoot("")

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        self.TypeTree.SetPyData(root, {"type" : CATEGORY})

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        for category in blocktypes:

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            category_item = self.TypeTree.AppendItem(root, category["name"])

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            self.TypeTree.SetPyData(category_item, {"type" : CATEGORY})

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            for blocktype in category["list"]:

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                blocktype_item = self.TypeTree.AppendItem(category_item, blocktype["name"])

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                self.TypeTree.SetPyData(blocktype_item, {"type" : BLOCK, "inputs" : tuple([type for name, type, modifier in blocktype["inputs"]])})

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        if wx.Platform == '__WXMSW__':

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            self.TypeTree.Expand(root)

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    def SetMinBlockSize(self, size):

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        self.MinBlockSize = size

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    def SetPouNames(self, pou_names):

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        self.PouNames = [pou_name.upper() for pou_name in pou_names]

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    def SetPouElementNames(self, element_names):

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        self.PouElementNames = [element_name.upper() for element_name in element_names]

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    def SetValues(self, values):

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        for name, value in values.items():

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            if name == "type":

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                inputs = None

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                if "inputs" in values:

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                    inputs = values["inputs"]

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                item = self.FindTreeItem(self.TypeTree.GetRootItem(), value, inputs)

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                if item:

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                    self.TypeTree.SelectItem(item)

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            elif name == "name":

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                self.BlockName.SetValue(value)

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            elif name == "extension":

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                self.Inputs.SetValue(value)

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        self.RefreshPreview()

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    def GetValues(self):

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        values = {}

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        item = self.TypeTree.GetSelection()

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        values["type"] = self.TypeTree.GetItemText(item)

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        values["inputs"] = self.TypeTree.GetPyData(item)["inputs"]

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        if self.BlockName.GetValue() != "":

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            values["name"] = self.BlockName.GetValue()

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        values["width"], values["height"] = self.Block.GetSize()

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        values["extension"] = self.Inputs.GetValue()

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        return values

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    def OnTypeTreeItemSelected(self, event):

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        self.BlockName.SetValue("")

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        selected = event.GetItem()

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        pydata = self.TypeTree.GetPyData(selected)

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        if pydata["type"] != CATEGORY:

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            blocktype = GetBlockType(self.TypeTree.GetItemText(selected), pydata["inputs"])

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            if blocktype:

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                self.Inputs.SetValue(len(blocktype["inputs"]))

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                self.Inputs.Enable(blocktype["extensible"])

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                self.BlockName.Enable(blocktype["type"] != "function")

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                self.TypeDesc.SetValue(blocktype["comment"])

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                wx.CallAfter(self.RefreshPreview)

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            else:

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                self.BlockName.Enable(False)

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                self.Inputs.Enable(False)

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                self.Inputs.SetValue(2)

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                self.TypeDesc.SetValue("")

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                wx.CallAfter(self.ErasePreview)

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        else:

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            self.BlockName.Enable(False)

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            self.Inputs.Enable(False)

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            self.Inputs.SetValue(2)

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            self.TypeDesc.SetValue("")

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            wx.CallAfter(self.ErasePreview)

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        event.Skip()

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    def OnNameChanged(self, event):

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        if self.BlockName.IsEnabled():

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            self.RefreshPreview()

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        event.Skip()

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    def OnInputsChanged(self, event):

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        if self.Inputs.IsEnabled():

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            self.RefreshPreview()

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        event.Skip()

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    def ErasePreview(self):

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        dc = wx.ClientDC(self.Preview)

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        dc.Clear()

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        self.Block = None

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    def RefreshPreview(self):

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        dc = wx.ClientDC(self.Preview)

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        dc.Clear()

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        item = self.TypeTree.GetSelection()

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        if item.IsOk():

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            pydata = self.TypeTree.GetPyData(item)

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            if pydata["type"] == CATEGORY:

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                self.Block = None

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            else:

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                blocktype = self.TypeTree.GetItemText(item)

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                if blocktype:

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                    self.Block = FBD_Block(self.Preview, blocktype, self.BlockName.GetValue(), extension = self.Inputs.GetValue(), inputs = pydata["inputs"])

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                    width, height = self.MinBlockSize

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                    min_width, min_height = self.Block.GetMinSize()

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                    width, height = max(min_width, width), max(min_height, height)

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                    self.Block.SetSize(width, height)

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                    clientsize = self.Preview.GetClientSize()

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                    x = (clientsize.width - width) / 2

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                    y = (clientsize.height - height) / 2

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                    self.Block.SetPosition(x, y)

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                    self.Block.Draw(dc)

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                else:

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                    self.Block = None

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    def OnPaint(self, event):

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            self.RefreshPreview()

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        event.Skip()

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#-------------------------------------------------------------------------------

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#                          Create New Variable Dialog

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#-------------------------------------------------------------------------------

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[ID_VARIABLEPROPERTIESDIALOG, ID_VARIABLEPROPERTIESDIALOGSPACER, 

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 ID_VARIABLEPROPERTIESDIALOGNAME, ID_VARIABLEPROPERTIESDIALOGCLASS, 

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 ID_VARIABLEPROPERTIESDIALOGPREVIEW, ID_VARIABLEPROPERTIESDIALOGEXPRESSION,

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 ID_VARIABLEPROPERTIESDIALOGSTATICTEXT1, ID_VARIABLEPROPERTIESDIALOGSTATICTEXT2,

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 ID_VARIABLEPROPERTIESDIALOGSTATICTEXT3, ID_VARIABLEPROPERTIESDIALOGSTATICTEXT4,

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] = [wx.NewId() for _init_ctrls in range(10)]

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class VariablePropertiesDialog(wx.Dialog):

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    def _init_coll_flexGridSizer1_Items(self, parent):

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        parent.AddSizer(self.MainSizer, 0, border=20, flag=wx.GROW|wx.TOP|wx.LEFT|wx.RIGHT)

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        parent.AddSizer(self.ButtonSizer, 0, border=20, flag=wx.ALIGN_RIGHT|wx.BOTTOM|wx.LEFT|wx.RIGHT)

   371

   372

    def _init_coll_flexGridSizer1_Growables(self, parent):

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        parent.AddGrowableCol(0)

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        parent.AddGrowableRow(0)

   375

   376

    def _init_coll_MainSizer_Items(self, parent):

   377

        parent.AddSizer(self.TopSizer, 0, border=0, flag=wx.GROW)

   378

        parent.AddWindow(self.staticText4, 0, border=0, flag=wx.GROW)

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        parent.AddWindow(self.Preview, 0, border=0, flag=wx.GROW)

   380

   381

    def _init_coll_MainSizer_Growables(self, parent):

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        parent.AddGrowableCol(0)

   383

        parent.AddGrowableRow(2)

   384

   385

    def _init_coll_TopSizer_Items(self, parent):

   386

        parent.AddSizer(self.LeftGridSizer, 1, border=5, flag=wx.GROW|wx.RIGHT)

   387

        parent.AddSizer(self.RightGridSizer, 1, border=5, flag=wx.GROW|wx.LEFT)

   388

   389

    def _init_coll_LeftGridSizer_Items(self, parent):

   390

        parent.AddWindow(self.staticText1, 0, border=0, flag=wx.GROW)

   391

        parent.AddWindow(self.Class, 0, border=0, flag=wx.GROW)

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        parent.AddWindow(self.Spacer, 0, border=0, flag=wx.GROW)

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        parent.AddWindow(self.staticText2, 0, border=0, flag=wx.GROW)

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        parent.AddWindow(self.Expression, 0, border=0, flag=wx.GROW)

   395

   396

    def _init_coll_LeftGridSizer_Growables(self, parent):

   397

        parent.AddGrowableCol(0)

   398

        parent.AddGrowableRow(2)

   399

   400

    def _init_coll_RightGridSizer_Items(self, parent):

   401

        parent.AddWindow(self.staticText3, 0, border=0, flag=wx.GROW)

   402

        parent.AddWindow(self.VariableName, 0, border=0, flag=wx.GROW)

   403

   404

    def _init_coll_RightGridSizer_Growables(self, parent):

   405

        parent.AddGrowableCol(0)

   406

        parent.AddGrowableRow(1)

   407

   408

    def _init_sizers(self):

   409

        self.flexGridSizer1 = wx.FlexGridSizer(cols=1, hgap=0, rows=2, vgap=10)

   410

        self.MainSizer = wx.FlexGridSizer(cols=1, hgap=0, rows=3, vgap=5)

   411

        self.TopSizer = wx.BoxSizer(wx.HORIZONTAL)

   412

        self.LeftGridSizer = wx.FlexGridSizer(cols=1, hgap=0, rows=5, vgap=5)

   413

        self.RightGridSizer = wx.FlexGridSizer(cols=1, hgap=0, rows=2, vgap=5)

   414

   415

        self._init_coll_flexGridSizer1_Items(self.flexGridSizer1)

   416

        self._init_coll_flexGridSizer1_Growables(self.flexGridSizer1)

   417

        self._init_coll_MainSizer_Items(self.MainSizer)

   418

        self._init_coll_MainSizer_Growables(self.MainSizer)

   419

        self._init_coll_TopSizer_Items(self.TopSizer)

   420

        self._init_coll_LeftGridSizer_Items(self.LeftGridSizer)

   421

        self._init_coll_LeftGridSizer_Growables(self.LeftGridSizer)

   422

        self._init_coll_RightGridSizer_Items(self.RightGridSizer)

   423

        self._init_coll_RightGridSizer_Growables(self.RightGridSizer)

   424

   425

        self.SetSizer(self.flexGridSizer1)

   426

   427

    def _init_ctrls(self, prnt):

   428

        wx.Dialog.__init__(self, id=ID_VARIABLEPROPERTIESDIALOG,

   429

              name='VariablePropertiesDialog', parent=prnt, pos=wx.Point(376, 223),

   430

              size=wx.Size(400, 380), style=wx.DEFAULT_DIALOG_STYLE,

   431

              title='Variable Properties')

   432

        self.SetClientSize(wx.Size(400, 380))

   433

   434

        self.staticText1 = wx.StaticText(id=ID_VARIABLEPROPERTIESDIALOGSTATICTEXT1,

   435

              label='Class:', name='staticText1', parent=self,

   436

              pos=wx.Point(0, 0), size=wx.Size(0, 17), style=0)

   437

   438

        self.staticText2 = wx.StaticText(id=ID_VARIABLEPROPERTIESDIALOGSTATICTEXT2,

   439

              label='Expression:', name='staticText2', parent=self,

   440

              pos=wx.Point(0, 0), size=wx.Size(0, 17), style=0)

   441

   442

        self.staticText3 = wx.StaticText(id=ID_VARIABLEPROPERTIESDIALOGSTATICTEXT3,

   443

              label='Name:', name='staticText3', parent=self,

   444

              pos=wx.Point(0, 0), size=wx.Size(0, 17), style=0)

   445

   446

        self.staticText4 = wx.StaticText(id=ID_VARIABLEPROPERTIESDIALOGSTATICTEXT4,

   447

              label='Preview:', name='staticText4', parent=self,

   448

              pos=wx.Point(0, 0), size=wx.Size(0, 17), style=0)

   449

   450

        self.Class = wx.Choice(id=ID_VARIABLEPROPERTIESDIALOGCLASS,

   451

              name='Class', parent=self, pos=wx.Point(0, 0),

   452

              size=wx.Size(0, 24), style=0)

   453

        self.Bind(wx.EVT_CHOICE, self.OnClassChanged, id=ID_VARIABLEPROPERTIESDIALOGCLASS)

   454

   455

        self.VariableName = wx.ListBox(id=ID_VARIABLEPROPERTIESDIALOGNAME,

   456

              name='Name', parent=self, pos=wx.Point(0, 0),

   457

              size=wx.Size(0, 90), style=wx.LB_SINGLE)

   458

        self.Bind(wx.EVT_LISTBOX, self.OnNameChanged, id=ID_VARIABLEPROPERTIESDIALOGNAME)

   459

   460

        self.Expression = wx.TextCtrl(id=ID_VARIABLEPROPERTIESDIALOGEXPRESSION,

   461

              name='Expression', parent=self, pos=wx.Point(0, 0),

   462

              size=wx.Size(0, 24), style=0)

   463

        self.Bind(wx.EVT_TEXT, self.OnExpressionChanged, id=ID_VARIABLEPROPERTIESDIALOGEXPRESSION)

   464

   465

        self.Spacer = wx.Panel(id=ID_VARIABLEPROPERTIESDIALOGSPACER,

   466

              name='Spacer', parent=self, pos=wx.Point(0, 0),

   467

              size=wx.Size(0, 0), style=wx.TAB_TRAVERSAL)

   468

   469

        self.Preview = wx.Panel(id=ID_VARIABLEPROPERTIESDIALOGPREVIEW,

   470

              name='Preview', parent=self, pos=wx.Point(0, 0),

   471

              size=wx.Size(0, 0), style=wx.TAB_TRAVERSAL|wx.SIMPLE_BORDER)

   472

        self.Preview.SetBackgroundColour(wx.Colour(255,255,255))

   473

        setattr(self.Preview, "GetDrawingMode", lambda:FREEDRAWING_MODE)

   474

   475

        self.ButtonSizer = self.CreateButtonSizer(wx.OK|wx.CANCEL|wx.CENTRE)

   476

   482

        self._init_sizers()

   483

   484

    def __init__(self, parent):

   485

        self._init_ctrls(parent)

   486

        self.Variable = None

   487

        self.VarList = []

   488

        self.MinVariableSize = None

   489

        self.RefreshNameList()

   490

   491

        for choice in ["Input", "Output", "InOut"]:

   492

            self.Class.Append(choice)

   493

        self.Class.SetStringSelection("Input")

   494

   495

    def RefreshNameList(self):